h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 502

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 14 Controller Area Network (HCAN)
14.4.5
The HCAN is provided with an HCAN sleep mode that places the HCAN module in the sleep
state in order to reduce current consumption. Figure 14.13 shows a flowchart of the HCAN sleep
mode.
Rev. 2.00 Dec. 05, 2005 Page 464 of 724
REJ09B0200-0200
HCAN Sleep Mode
Message control/message data read
Figure 14.12 Unread Message Overwrite Flowchart
Unread message overwrite
Interrupt to CPU
Clear IRR9
UMSR = 1
IMR9 = 1?
IRR9 = 1
End
No
Yes
: Settings by user
: Processing by hardware